For the overheard analog guages, like APU etc, I have a few questions.1) Where can you buy these guages.2) What input systems are able to control moving guages and link them to PM systems?ThanksAlan

One idea is to use FsBus and some servomotors for APU, or Steppermotors for Flaps etc.You can also make your own logic with CCC in Fsbus.The same you can do with Opencockpits system and there is also some tutorials in their site, how to make analog gauges.Good luck !!Eddie ArmaosAthens-Greece

Alan,There is a lot of info here http://www.mikesflightdeck.com/Iinstrument_panel_3.htm about making and interfacing simulating analog gauges.Mikewww.mikesflightdeckbooks.com

For example... This is a tutorial for create a attitude indicator with iocards...http://www.opencockpits.com/modules.php?na...h%20servomotors